Today’s environmental status of Narragansett Bay (Bay) and the entire Narragansett Bay Watershed (Watershed) is the result of hundreds of years of human activities and environmental variability. Numerous organizations have worked together for decades to reverse trends of declining environmental conditions and to understand new threats such as those associated with climate change. Beginning in 2014, the Narragansett Bay Estuary Program brought together more than 50 practitioners from universities, organizations, and agencies in Massachusetts and Rhode Island to collaborate on the 2017 State of Narragansett Bay and Its Watershed report.